In which of the following situations should you increase your following distance?

• During rain or when roads are wet
• During low visibility conditions
• When carrying heavy loads or pulling a trailer
• All of the above
  Explanation:

  "Increase your following distance in these situations: 1. Rain or when roads are wet. 2. Low visibility dusk, dawn, nighttime, fog, etc. 3. When being passed (more space in front of your vehicle so the pass can be completed safely). 4. Carrying a heavy load or pulling a trailer."